Source: Federal Reserve Bank of St. Louis  

Release: St. Louis Monthly Reserves and Monetary Base  

Units:  Billions of Dollars, Seasonally Adjusted

Frequency:  Monthly

Notes:

Updates of this series will be ceased on December 20, 2019. Interested users can access the not seasonally adjusted version of this series from the H.3 release, BOGMBASE.
For more details, see the FRED Announcement.

Source: Board of Governors of the Federal Reserve System (US)  

Release: H.6 Money Stock Measures  

Units:  Millions of Dollars, Not Seasonally Adjusted

Frequency:  Monthly

Notes:

The Board of Governors consolidated this series onto the Statistical Release H.6, "Money Stock Measures", after the H.3 statistical release was discontinued. For more information on the consolidated H.6 release, see the H.6 Technical Q&As.

The series equals total balances maintained plus currency in circulation.